Water-coil.



W. M. TAYLOR. WATER OOIL. APPLIUATION mun we. a, 1908.

91 6,936. Patented Mar. 30, 1909. 2 SHEETS-SHEET 1.

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Patented Mar. 30, 1909.

UNITED STATES PATENT OFFICE.

WALTER MARTIN TAYLOR, OF TORONTO, ONTARIO, CANADA, ASSIGNOR TO FREDERICK WILLIAM COX AND JOHN BISSIIT,

TRUSTEES, OF TORONTO, CANADA.

WATER-COIL.

Specification of Letters Patent.

Patented March 30, 1909.

Original application filed September 16, 1907, Serial No. 393,136. Divided and this application filed August 8,

To all whom it may concern:

Be it known that I, WALTER MARTIN TAY- LOR, a subject of the King of Great Britain, residing in the city of Toronto, in the county of York, Province of Ontario, Canada, have invented certain new and useful Improvements in Water-Coils, of which the following is a specification.

My invention relates to improvements in water-coils, and the present application is divided from my original application for improvements in water-heaters or steam-generators, filed September 16, 1907, under Serial #393135, and the objects of my invention, are: firstly, to construct a water-coil as shallow as possible so that the water-coil-units thereof will be directly in the zone of the flame issuing from any suitable burner secondly, to construct the water-coil so as to equalize the pressure of the water throughout the length thereof so that the water passing therethrough will not ordinarily be con verted into steam, thus enabling my apparatus to be used for the purpose of heating water, and thirdly, to construct a light portable water-coil so that it may be readily carried to wherever it is desired to use it.

Although I preferably use my water-coil in connection with a coiled gas-burner, still it will be understood that my water-coil may be used in connection with any kind of heater. But as gas-burners are almost universally used for the purpose of heating water, I have s ecially designed my water-coil to be used therewith, so that the water-coil-units ofthe water-coil by reason of the shallow construction of the same, will be within the flamezone, thus enabling me to heat the water in a very short space of time, because the actual flame from the burner envelops the whole of the water-coil. In waterco1ls now on the market in which water is heated, very few of the coil-units are directly within the flamezone, and consequently the water is heated in the coil-units above the flame-zone by reason of the heat escaping therefrom: needless to say this method of heating water requires more time and fuel than is necessary.

My water-coil is composed of concentrically coiled pipe units .or water coil units, the coils of each individual pipe-uint, or water-coil-unit being in substantially a horizontal lane, and being spaced apart so that the coil of each alternate pipe-unit or water- Serial No. 447,606.

I coil unit will extend a suitable distance into the space of the pipe-units or water-coil-umts abling me to make my water-coil very shallow and compact, for the purpose before set forth.

From the following specification it will be understood that as the Water passes from one horizontal pi eunit or Water-coil unit into another, the irection of its flow is reversed, and this occurs several times before the water passes completely throu h the Watercoil, thus absolutely insuring t 1e heating of the Water to the desired degree.

Figure 1 isa plan-view of my preferred form of water-coil, and Fig. 2 is a side eleva tion thereof. Fi 3 is a plan-view of my water-coil (the t ree upper pipe-units or water-coil-units having been removed) showing how the lowermost unit of the water-coil is supported directly above the gas-burner and for its whole heat-producing len th. Fi 4 is a vertical cross-section somewiat en arged on the line ab Fig. 1, and Fig. 5 is a detail view, showing partly in section an alternative form of coupling for the watercoil-units.

In the drawings, like characters of reference indicate corresponding parts in each figure.

The burner I preferably use is constructed of a coiled pipe or tube. The lowermost pipe-unit or water-.coil-unit is placed directly over the gas aperture in the said gasburner; andthis position of the same, to gether with the before-described preferred position of the ipe-units or Water-coil units, enables me to eflect or turn aside the gas flame so that it will envelop all the pipeunits or Water-coil-units of the water-coil.

Although in the drawings I show two pipeunits or water'coil-units placed side by side for a certain length, immediately above the gas-burner, I do not confine myself to using these twin ipe-units or WELtQF'COlI units, as will be readily understood. By using these twin pipe-units, I increase the area of the pipe-unit or water-coil-unit immediately above the gas-burner, and also cause the flowing water to flow backward in a path above, but substantially the same as, the coil of the gas-burner, thus positively heatin the water to boiling point in case it shoul not be heated by merely one small pipe-unit.

immediately above and below, thereby en- The pipe-units or water-coil-units are made of pipes which have a smaller cross section than the pipes immediately above and below, the smallest pipe in cross-section being that immediately above the gasburner. By this construction I equalize the pressure of the water throughout the length of the water-coil and give the water the desired speed to prevent its conversion into steam, and the cross-section of the stream of water gradually decreases the nearer it approaches the es-burner, thus enabling me to very quickly wet the same.

A is the first pipe-unit, or water-coil unit (for the sake of brevity I will call the different water-coil-units, pipe-units); B is the second pipe-unit; C the third pipe-unit; D the fourth ipe-unit, and E the fifth pipeunit; there eing five pipe-units in the watercoil shown. It will be noticed that the pipes composing the said pi e-units decrease in cross-sectional area in t e pipe-units from A to E so as to give me the advantages before set forth. The said pipe-units are com osed of coiled pipes, as before set forth, Wit 1 sufficient space between the coils of each pipeunit so that the coils of the ipe-units immediatel r above and below wil extend a suitable istance into the spaces between the coils of the adjacent pipe-units, thus giving me a very corn act water-coil, the coils of the pipe-units of w iich are most advantageously placed, the result being that all the water coil-units are well within the flame-zone.

As the ipe units of the water-coil are constructed the water enters the pi e-unit A by the end F and circulates theret rough to the pipe-unit B, cou led thereto by any suitable coupling H, an flows in the reverse direction through the pipe-unit B into the pipe-unit C cou led thereto by any suitable coupling I. T rough the pipe-unit C the water flows in the reverse direction into the pipe-unit D coupled thereto by any suitable coupling J and owe in the reverse direction through the pipe-unit D into the pipe-unit E coupled thereto by any suitable coupling K, and then flows in the reverse direction through the i e-unit E assing from the discharge end i: thereof eated to boiling point. By following the course of the water through the different pipe-units as just described, it will be understood that the water flows in a substantially horizontal plane, and its direction of flow is reversed each time it asses from one pipe-unit into another.

en I use the two pipe-units D and E, I secure the same in uxtaposition by any suitable means, such as metallic bands 3 passed around both at suitable intervals.

4 are a plurality of metallic spacers bent into proper shape and placed between the pipe-units of the water-coil so as to maintain the same in pro er position.

5 is a oentra supporting post provided with a plurality of radiating rods 6 which rest upon the top of the pipe-unit A.

7 are a plurality of rods radiating from the supporting post 5 and resting upon the gasburner 5:5; the pipe-units D and E rest upon the rods 7. By means of the collar 9 on the supporting post 5, the radiating arms 6 can be moved so that the different pipe-units will be snugly held in position.

10 are a plurality of radiating arms sup ported by the said post and upon which rest the gas-burner 8. By means of the said radiatin arms 10, it will be understood that the gasurner will be held in a set relationshi to the water-coil.

f find that I get best results by sup orting the pipe-units D and E a certain distance above the gas-burner 8 so that they will be situated in the hottest part of the flame above the orifice 11 of the gas-burner. Furthermore, by SLZiPPOItlDg the said pipeunits the proper istance from the gasburner, I prevent the flame from getting smothered and thus revent the eneration of any disagreeable 0 or. It will e noticed that the coils of the burner will be spaced apart thus allowing for ventilation.

Upon referring to Fi 5 will be seen an alternative form of coup ing for the different pipe-units. 15 is a nipple screwing over the outer coupling end, for instance, of the pipe composing the pi. e-unit D, and screwing into the coupling 16 is a nipple screwing over the outer coupling end of the pipe composing the pipe-unit E and also screwing into the coupling K.

I/Vhat I claim as my invention is:

1. A water-coil consisting of a plurality of coiled pipe-units individually occupying a substantially horizontal plane, the cross sectional area of the pipe forming each pipeunit being less than the cross sectional area of the pipe forming the preceding pipe-unit; the outer end of a given ipe-unit being connected to the pipe-unit a bove, and the inner end of the said given pi e-unit being connected to the pipe-unit below, the coils of each pipe-unit bein spaced apart, and the different pipe-units eing so associated that the coils thereof will extend into the said space between the coils of the pipe-units immediately above and below; a centrally placed supporting member for said watercoil; spacers between the said several pipeunits, and means carried by said post for retaining the said pipe-units in relative position.

2. A water-coil consisting of a plurality of coiled pipe-units individually occupying a substantially horizontal plane, the cross sectional area of the pipe forming each pipeunit being less than the cross sectional area of the pipe forming the preceding pipe-unit; the outer end of a given ipe-unit being connected to the pipe-unit a ove, and the inner end of the said given pi e-unit being connected to the pipe-unit elow, the coils of each pipe-unit being spaced apart, and the different pipe-units being so associated that the coils thereof will extend into the said space between the coils of the pipe-units immediately above and below; a centrally placed )ost; a plurality of spacers between the sai severe pipe-units; a plurality of rods carried by said posts and supporting said water-coils, and a plurality of rods carried by said post resting upon the uppermost water-pipes, thereby retaining the said pipe-units in relative position.

In testimony whereof I have signed my 15 name to this specification, in the presence of two subscribing witnesses.

\VAL'IER MARTIN TAYLOR.

Witnesses:

N. LANGFIELD, WM. S. JORDAN. 

